text: # Copyright 2017 The Chromium Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  """Presubmit script for ukm.xml.
  
  See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
  for more details on the presubmit API built into gcl.
  """
  
  USE_PYTHON3 = True
  
  UKM_XML = 'ukm.xml'
  
  
  def CheckChange(input_api, output_api):
    """Checks that ukm.xml is pretty-printed and well-formatted."""
    for f in input_api.AffectedTextFiles():
      p = f.AbsoluteLocalPath()
      if (input_api.basename(p) == UKM_XML
          and input_api.os_path.dirname(p) == input_api.PresubmitLocalPath()):
        cwd = input_api.os_path.dirname(p)
  
        exit_code = input_api.subprocess.call(
            [input_api.python_executable, 'pretty_print.py', '--presubmit'],
            cwd=cwd)
        if exit_code != 0:
          return [
              output_api.PresubmitError(
                  '%s is not prettified; run git cl format to fix.' % UKM_XML),
          ]
  
        exit_code = input_api.subprocess.call(
            [input_api.python_executable, 'validate_format.py', '--presubmit'],
            cwd=cwd)
        if exit_code != 0:
          return [
              output_api.PresubmitError(
                  '%s does not pass format validation; run %s/validate_format.py '
                  'and fix the reported error(s) or warning(s).' %
                  (UKM_XML, input_api.PresubmitLocalPath())),
          ]
  
    return []
  
  
  def CheckChangeOnUpload(input_api, output_api):
    return CheckChange(input_api, output_api)
  
  
  def CheckChangeOnCommit(input_api, output_api):
    return CheckChange(input_api, output_api)
  